Trolley.



PATENTED AUG. 11, 1908.

F. L. SESSIONS.

' TROLLEY.

'APPLIGATION FILED MAY 24,1904.

hwauroz UNIEDSTAWS FRANK L. ssssions, O'FOOLUMBUSLO'HIO, assienon, BY MESNETASSIGNMEVNTSLTO THE, JEFFREYMANUFACTURING COMPANY, A CORPORATION or oruo.

To all whom it may concern."

- I Y Specification of Letters Patent.

. Patented Aug. 11, 1908.-

Application filed ma 2t, 1904. Serial No. 209,583.

Be itknown that I, FRANK L. stem, 5.- c tlzen of the United States, residing at Co lumbus, 1n the county of Franklin and State of Ohio, have inventedeertain new anduseful Improvements in Trolleys, of whic'h the following is a specification, referencebeing had therein to the accompanying drawing.

This invention relates to improvements in trolleys or current collecting devices used with electric locomotives for receiving the made in two parts adapted to be alternately used, these two parts being mounted'upon' a common axis and extending in o posite directions therefrom, so that the co lector as Whole can be reversed to first bring one end into active position and then the other.

Fi ure 1 is a side view of part of an elec- .tric ocomotive having atrolley device attached thereto embodying my improvements. Fig. 2 is a view of part of one of the sidearms on a larger scale, it showing also I I part ofthe mounting orsupporting parts shows the collecting spring in section.

and a part of the contact device. Fig. 3 is a face vlew ofthe partstshown in Fig. 2. Fig; 4 is a sectional View of the parts at the outer end of one of the arms. v 5 is asectional view on the .line X-X of Fig. 4. Fi n; 6 1g. 7 is an end view showing the collector complete.

- In the drawings, A lndicates an electrically driven car. This may be of any approved form and be provided with a motor It is formed of a-section of tubing 71 which exand other apparatus-of-any desired sort;

While the'parts that more particularly embody the invention .or. improvements to which this patent pertains are intended es-- .pecially for use in connection with relatively small electric locomotives of the fsort.'employed in factory ards, freight house track ways, in mine hau age and the like, it will be understood that the invention is notto be limitedinthatrespect. a

B 'ndicates a section of the main conductor system, principally composed of wires I 1 suspended overhead and from whichit is desired to conductthe current for operating the motors on the car A.

; Q-Qare-riprights or frame sections which bearing '0 are secured to and extend up from the top of the locomotive and are intended to carry the collector tobe described. As shown-there is aframe section at each sidev ofthe car, which is composed of a oentralstandard a, two inclined races a secured at suitable points to the car, and also atth'eir upper ends to the The-collector, proper, is composed of the carryingarms D, the collecting devices at E and the hinging or supporting devices at F.

' Each of the side bars D is made of wood of suitable sort, so as to serve. to insulate the current conducting parts and also serve'as Each bar is at 1ts center,

supports therefor.

longitudinally, secured to a mounting block Gr, provided with a socket or formedwith flanges g which, together with the back plate I 9 firmly hold the wooden bar D in place when fastened by the bolts-at 9 'The shaft or hinged bar F passes through these mounting blocksG and is rigidly connected thereto by a pin or boltasatff 4 The shaft F at each end projects somewhat beyond the side bars D and the projecting part is mounted in the bearing at 0- above described.

The bars DD-extend outward from their axis on substantially parallel lines and at their outer ends are each provided with a metallic attachment indicated as a whole by II. This is socketed or formed with flanges at h, the flanges lying by the side of the bar D and the latter being fastened by bolts or rivets as shown at h. The metallic attachment is formed with a bearing at h, which is provided with an aperture at h. threaded aperture.

I indicates the collecting roller as a whole.

tends from points near-one of the bars D At b it has a 'across to points near the other, this tube in practice being from two to three feet long,

though it may be shorter or longeras 0cca sionmay-require. Ateach-end of the tube there is a metallic plug .or'filling piece I, which is so shaped as to have'a'short tube or sleeve \fitting tightly within the end part of the tube 1, and shouldered at t and a tapering head part '5 V At I there is a bushing fitted inthe filling block I. v v

The roller is mounted at each end on shaft J which extends through and projects beyond the ends thereof This shaft at. either end is seated in the aperture 71 in the metallic attachment II and is fastened therein by a pin or otherwise. The inner end of the pin y' is 'Iittcd in the bushing I and provides a support upon which they tube can rotate.

The outer ends of the side bars D-D are I connected together by a brace K,, which is preferably a section of tubing screw threaded and fitted in the apertures at h. tube together with the insulating arms D-D form a strong rectangular frame. One of the metallic attaclmients II is provided witl a binding post, or is otherwise adapted to have the conductor wires secured thereto. As

shown, an aperture at Z is formed to receive the end of the wire L and a transversely arranged bolt Z is employed to fasten the wire in place. The wire extends along the insulating bar I) to the axis and is then carried down or is eoni'iected.with the conductor sections which extend down to the motor. Air

electric path is provided from the roller I to the wire ll through the piu .l and the metallic attachn'lent H. To prevent breaking this part of the circuit, use is made of flat bent springs, as shown M, having perforations through which the pin J passes and being so shaped as that one end shall tend to pressoutward toward the attachment H and the other to press inward toward the end of the roller I.

Trolleys of this sort, generally known as teetering trolleys, are now well. known; but I believe myself to have succeeded in devising one embodying several matters of advantage and superiority in comparison with those that have heretofore been known.

' The wooden bars D are superior to the metallic bars that have been heretofore employed in teetering trolleys, as they not only furnish the requisite strength but are resilient and moreover can be so arranged as to provide perfect insulation, so that there shall 1 be no loss of current under ordinary eircumstances and again they permit their being grasped by the hand in case of sudden necessity without harm to the party touching them. The cross brace tubes at K insure a rigidity in the framework and prevent tortionai twisting of the bars I), and also pre- This cross orting said arms, the elongated tubular colecting roller E extending from points near one arm to points near the other, the mounting blocks at the outer ends of the wooden arms for supporting the rollers, and the cross brace K rigidly connected to the said mounting blocks, substantially as set forth.

2. In a current collecting trolley niechanism of the character described, the combination of the wooden insulating and bracing bars D, the hinging devices therefor, the elongated tubular collecting device extending from points near one arm D to points near the other, the expanded bushing heads insorted into the said tubular collector, the metallic mounting blocks secured to the outer ends of the bars D, the journals interposed between the mounting blocks and the roller bushings, and the cross brace K rigidly secured to the mounting blocks, substantially as set forth.

- 3. In a current collecting trolley mechan-' ism of the class described, the combination of the wooden insulating and su porting bars I), the mounting blocks secure to the outer ends of the bars, the elongated collecting roller, the solid bushing heads in the collect ing roller, the wearing bushing, the journal carried by the mounting block, the conductor extending along the insulating bars I) and electrically connected to the mounting block, substantially as set forth. i In testimony whereof I affix my signature in presence of two witnesses.

FRANK L. sessions.

Witnesses: I

O. WAXBORN, R. R. DUNLOP. 

